Device for assembling the parts of pasteboard boxes and other similar packings.



L. PLANCHE.

DEVICE FOR ASSEMBLING THE PARTS OF PASTEBOARD BOXES AND OTHER SIMILAR PACKINGS.

APPLICATION FILED JAN. 8. 1914.

1,148,985. 1 Patented Aug. 3,1915.

WITNESSES INVENTOR La 15.;62% LESN PLANcHE BY W 17 I ATTORNEYS COLUMBIA FLANDGRAPH co..wAsHlNuToN, D. c.

STATES P TENT OFFICE.

LEON mean, on PARIS, FRANCE;

DEVICE FOR ASSEMBLING Tun rams or rii'srnsonnnnoxns Am) owner. snuinna PACKINGS.

Specification of Lettersl'atent. I

Patented Aug. 3, 1915.

Application filed January 8, 1914. Serial No. 811,006.

To all whom it may concern:

Be it known that I, LiioN PLANOHE, a citizen of the Republic of France, residing at 130 Rue du Faubourg Saint-Denis, Paris, in the Republic of France, manufacturer, have invented certain new and useful Improvements in Devices for Assembling the arts of Pasteboard Boxes and other Similar Packings, of which the following is a specification.

This invention relates to a device for assembling the parts of boxes made of pasteboard and of all other pasteboard packings, as well as those made of strong paper and other similar materials, allowing of uniting simply, quickly and safely all the component parts of the body or of the lid of such packings or of their fastening flaps and the like.

According to this invention, there is provided in one of the parts to be assembled a slit, which may be either straight or curved, and the other part is provided with a flap or tongue enabled to engage in such slit and of which the end or head is provided with lateral projections which may be folded inwardly to allow of the passage of the said flap into such slit and then folded outwardly to prevent the escape or disengagement of such flap. Such device is essentially different from the assembling devices now in use in which the lateral projections of an assembling flap integral with one of the parts to be assembled are engaged in two distinct slits, provided in the other part. In this case, the projections or fastening elements alone are engaged under the other or opposite part and are only held thereunder by reason of the resistance of the flap to the flexion in the direction perpendicular to its plane, and as such resistance is very slight on account of the nature of the pasteboard and of the deformation to which it is often subjected to put such elements in place, the result is that the assembling is not safe and gives way to the least effort made to raise the flap, especially when the edge of the latter, in the free part between the two slits, is fastened or raised by means from the outside.

With the novel device the safety of the assembling is much safer and the aforesaid drawback does not occur as the slit part extends across the flap throughout its length of the box the side a; is provided with a vertical slit 0 and the side 5 is provided with a lateral flap d which may be engaged in such slit and has projections or catches 6 turned in opposite directions. Such catches are folded inwardly before the insertion of the flap d into the slit 0 (see Fig. 1) and then folded outwardly (see Fig. 2) so that in abutting against the adjacent parts of the ends of the slit, they prevent the flap from being separated from the same in whatever direction the efforts may be made to bring about such separation. The width of the flap d at the tip thereof is such as to permit it to just enter the slit 0 when projections e are folded inwardly as shown in Fig. 1 of the drawings. In this manner the flap is prevented from shifting in the slit when in engaged position. It will be observed that the projections e are bent inwardly on lines parallel to each other and spaced apart a distance equal to the interior dimension of the slit, so as to permit the flap to enter the slit, while the slit is preferably provided with a curved central ortion and straight ends so that when the ap is engaged there with, the beveled projections will extend beyond the ends of the slit and be held from displacement. 7

Of course, the shape and the proportions of the slit, of the assembling flap and of its the slit to be extended in alinement With the Wit a secondfoldable part having a taperedfiap In testimony, that I claim the foregoing terminating in oppositely extendingbeveled as my invention I have signed my name in projections foldable inwardly to enter the presence of two subscribing Witnesses.

slit and adapted after being passed through r r LEON PLANOHE.

flap and to project beyond the ends of the I 'H (1 C slit to prevent disengagement of the flap. MAURICE ROUX,

Copies of this patent may be obtained for five cents 'eaeli, by addressing the Commissioner of Patents, I Washington, D. 0. 

